Other Liabilities (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Other Liabilities [Abstract]
Accrued pension costs	$ 7,141,000		$ 7,141,000		$ 6,976,000
Interest cost	74,000	87,000	165,000	177,000
Amortized prior service cost	$ 165,000	$ 76,000	$ 330,000	$ 152,000